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' W. BURKMAN.

Y BRICK MACHINE. No. 364,395. PatentedJune '7, 1887.

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- BRICK MACHINE.

Patented June '7, 1887.

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BRICK MACHINE. A

Patented June '7, 1887.

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UNITED STATES PATENT OFFICE.

VALFRID BURKMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHARLES H.

FROST, OF SAME PLACE.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 364,395, dated .Tune 7, 1867.

Application filed July 1T, 1856.

To @ZZ whom it 11mg/ concern:

provement in Brick-Machines, of which the following is a full description, reference being had to the accompanying drawings, in which- Figure lis a side elevation. Fig. 2 is a plan View, the cover being removed. is a horizontal section at liuc x of Fig. 1.` Fig. 4L isa central vertical section at linea: ofFig. 2. Fig. 5 is a vertical section at line y of Fig. l. Fig. 6 is a detail, being a section at line x of' Fig. 5. Fig. 7 is a detail, being a section at line y of Fig. 5. Figs. 8 and 9 are details, being side elevations of two blocks. Fig. 10 is a vertical section at line z of Fig. 1. Fig. 1l is a detail, being a plan of the hinged cover which carries the upper plungers.

Thisimprovernent relates to a hand-machine for making ornamental brick.

The objects of the invent-ion are to provide improved devices for feeding the clay to the molds and giving pressure upon opposite sides of the brick,which I accomplish as illustrated in the drawings, and hereinafter described.

That which I claim as new will be pointed out in the claims. s

In the drawings, A represents the main frame.

B is the hopper.

C is a fixed table secured at one side of the frame. i

D is a fixed table on the opposite side of t-he frame. Y

E is a movable head or sweep for pushing the brick onto the table D.

v is a handle.

c a are two receptacles for claylocated beneath the hopper. They are connected with the head or sweep E. The lower edges of the side pieces, b, of these receptacles slide upon guides c upon the table C, and their upper edges slide in grooves in the wall of the hopper, asshown in Fig. 10. These side pieces, b, extend to the rearward a considerable distance, and upon their top is a plate, F,which, when the clay-receptacles and head Vor sweep E are moved forward, passes beneath the hopper and cuts off the flow of clay therefrom.

In the upper p-art of the main frame are two mold-boxes, G G, provided with suitable linings, as usual.

H Hare two plungers, one for each of the moldboXes G, which plungers are provided with facings at their upper ends. These pluugers are bolted at their lower ends to a movable piece, I, which may be regarded as a part of the plungers, and which moves in a suitable guide, J. I is provided with a central screw -threaded opening which receives the screw K,`which is keyed to a beveled pinion, L. The lower end of the shaft or screw K is supported'in a suitable bearing in the frame.

M is a beveled pinion engaging with the wheel L. This pinion is upon a short shaft supported in suitable bearings, upon which shaft is a fiy-wheel, N, on which there is a handle, d.

O is a cover hinged at e to of the frame.

f is a locking-catch operated by a lever, g, for the purpose of fastening the cover securely in place when it is closed.

I is a shaft supported in bearings in the cover O. This shaft is made eccentric at two points, h

Q Q are two plungers, each provided with a suitable facing, j, which plungers move in passages provided in the cover O.

k k are two blocks located in openings provided in the plungers Q, in which blocks the eccentric portions of the shaft I? are located.

R is a hand-wheel on the shaft P.

The operation is as follows: When the niachine is to be ready for use, the covermust be first thrown back upon its hinges, carrying with it the plungers Q, and leaving the moldboXes exposed. rlhen the clay-receptacles c,

the upper part being full, are to be pushed forward by an operator, whotakeshoid of the handle o, until the clay-receptacles come over the mold-boxes, into which the clay will fall from the receptacles a, and at the saine time the plate F will come beneath the lower end of the hopper and cutoff thefiow of clay. The receptacles @,with

the head or sweep E and plate F, are then to be returned to the position shown in Fic. 4. Then the cover O is to be closed and secured in place by means of the lock-latch. Then an operator by rotating the wheelhT will give -an upward motion to the plungers H through the action of the pinion M, wheel L, and screw K, giving the required pressure upon the under side of the brick. Then by rotating the handwheel R the operator can give pressure upon the uppersurface of the briekin the two molds, the rotation of the shaft P andthe action of the eccentrics hi forcing the plungersQ Qdown a little. The movement of these plungers downward is slight, the main pressure having been given from below. Then the operatoris to release thelatch and throw the cover O hack. Then by continuing to rotate the wheel N the plungers H II can be forced upward, carrying the lower edges of the two pressed` bricks in the molds up to a line with the delivery-table D. Then the operator again pushes forward the head or sweep E, which, coming in contact with the brick, will force them onto the de livery-table D. Then the plungers H are to be returned to their former position and clay will again be delivered from the receptacles a to the mold-boxes. Then the clay-receptacles and sweep are to be returned to the position shown in Fig. 4. The cover is to be again turned down, and the described operation of pressing thebriek and delivering the same to the table D is to be repeated.

It will be observed thatIgive the main pressure by means of the` lower plungers, the upper plungers whilethis first pressure is being given remaining stationary, and that I then give a final pressure upon the upper surfaces of the brick, thelower plungers remaining stationary while such final pressure is being given. I nd in practice that there are advantages from this method, among which are, that the top of the completed brick is near the top of the mold-boxes, so that it requires lessmovement of the lower plungers tolift the brick out from the mold-boxes. I also find thatby this method I can make a finer and better ornamental brick than heretofore. The lower plunger or die may be provided with any suitable ornamental iigure.

What I claim as new, and desire to secure by Letters Patent isl. In a brickinachine, a main frame provided with one or more mold-boxes, in combination with a cover, Ocarrying one or more plungers, Q, and a shaft, I), supported in the cover and provided with an eccentric for each of said plungers Q, substantially as and for the purpose speeied.

2. In a brick-machine, a main frame pro' vided with one or more mold-boxes, a cover, O, carrying one or more plungers, Q, and a shaft, I), provided with an eccentric for each of said plungers,in combination with a head or sweep, E, and one or more clayereceptaelcs, a, substantiall y as and for the purpose specified.

3. In a brick-machine, a main frame provided with one or more mold-boxes, a cover, O, carrying one or more plungers, Q, and a shaft, I), provided lwith an eccentric for each plunger Q, in combination with one or more 

